Last Blast

**YENKO DEUCE REGISTRY** · #1 12-18-2001, 06:04 PM

Took the Deuce out for one last blast through the gears before putting it away for the winter! Amazing what a weight and spring kit in the distributor does, rubber in all gears is fun - if gotta em, burn em!!
M

NWYENKO · #2 12-31-2001, 03:40 PM

Marlin, what springs and weights did you use?? What did it give you for total timing? Are you using pump gas or racing fuel? I can tell I am not getting enough advance quick enough now and was planning on redoing the dist. this spring.

Belair62 · #3 12-31-2001, 08:34 PM

Marlin come on...wake up...everyone knows that car is a small block and not capable of the behavior you described.....unless you mistook it for a small block and its really a 427 ! Happy New Year

[Edited by Belair62 (12-31-2001 at 03:34 PM).]

**YENKO DEUCE REGISTRY** · #4 12-31-2001, 08:45 PM

Hey now!!
350, 427, whatever it takes to spin the tires is fine with me. I can't imagine what a '69 Yenko Nova is like, I've ridden in some '69 Yenko Camaros and they were plenty fast. I think you need to get one of these 'small block' streat beaters, and do some racing out there in Chi-town.

A trip to Maple Grove Raceway is planned for the spring, so that's why the carb is out getting redone. I'm hoping for 13.7's, we'll see.
M

Belair62 · #5 01-01-2002, 04:29 AM

I knew that would get you going !!!r !!!!!!

**YENKO DEUCE REGISTRY** · #6 01-01-2002, 05:26 AM

Jim;
I have no idea on the specs on the weights! I just bought the kit, put in the lightest springs, and weights and put it back together. I don't know how much timing I running yet, but I'm not worried since I'm running straight race fuel - Sunoco Purple, whatever octane that is; 108 or 112. I'm running 70 size jets in the primary, and 82's in the secondary's with a blocked power valve. I have the 'yellow' spring in the vacuum chamber. The orig. exhaust manifolds and full smog stuff is installed, including the heat riser valve and original style exhaust system - crinkle bends, orig. I.D. and twin resonators with single crossflow muffler.

I only changed the dist. stuff and the difference was remarkable. I could only get rubber in 1st when I dropped the clutch from 2k. Now, I can't keep the tires under it. I try rolling away from red lights and then gradually get on it, it still breaks them loose all the way through 1st gear. I'd like to burn 'em through 2nd gear, but I drag 1st out too long. I haven't tried a 2k sidestep yet, it fishtailed with that method before I changed the springs - so I'm afraid what it might do now! I'll wait till spring when I find a place to experiment with a lot of room.

I'm sending the carb out to get redone over the winter, then I'll set the valve lash again, time it better, and then

M

Casey Marks · #7 01-01-2002, 12:46 PM

Marlin,

Sounding more and more like a FINE candidate for the Pure Stock races !

**COPO** · #8 01-01-2002, 07:00 PM

I've heard both good and bad stories about Pertronix as well. Here's an alternative that a number of users on the Chevelle board have endorsed. http://www.davessmallbodyheis.com/

TC · #9 01-01-2002, 07:32 PM

I'm not 100% sure it was Pertronix I installed in an LS6 for a customer a couple years ago....but it seems like that was the brand name.
It seemed to worked quite well,I also did some other tuning too...but the car had no problem burning the tires threw first and second gear,rolling at about 15-20 mph.....which wasn't possible before that.
Of course,I wasn't twisting it up like a Small block...either,so I'm not sure how it would act at 7 grand.
Maybe they had some,that were defective?

Chevy454 · #10 01-01-2002, 07:38 PM

We have been using the Pertronix units for several years, with mixed results. The original style worked very well, whereas the 2nd design was flawed from the beginning. When we contacted the company, they said they had some other complaints about the newer design, and were replacing all the newer units with the older design. Our local parts guy swapped out all the units he had on our shelf. I have heard there is an even newer design within the last year, but we haven't tried it yet. For now, points are what powers our Camaro into the 12s...