dan0617 wrote:
Quote:

BeachBum wrote:
In my opinion, the best modification for a C4 if your just looking to spend a little, but see a real performance gain is a torque converter. With your stock C4 TPI set-up, a little 12" 2500 rpm converter would work great.... they can be had for $ 300 or less depending on where you get it.

If you're content on doing an engine modifications one at a time, I always advise to start from the middle and work your way out. Thus, if you're staying with your original shortblock, then slap in an aftermarket hyd roller cam..... I recommend the LPE 211 for your application..... its designed to compliment your long tube runner tpi set-up. You'll need new springs too. In the future, as you can afford it, you can upgrade the cylinder heads, intake, exhaust etc.... and not have to take them off again. It would be ideal if while you have your aluminum cylinder heads off the car you could have a some light port work with a valve job..... (perhaps around $ 700-800).... with the cam and light port work, you could see a real 50+ HP gain even with the stock exhaust.

good luck !

I couldn't agree more that a higher stall converter would benefit you alot. Just be careful in choosing the stall speed with a TPI setup. 2500 the absolute max I'd go. I installed a 2800 stall last fall, knowing I was going to a HSR intake over the winter. For the fall months the car wasn't good. It would launch like a beast but for the rest of the run the rpms stayed higher than the TPI's peak. I slowed down alot because of running higher than the powerband. I'd go with about a 2200 stall if I were you. A properly chosen stall converter helps with a less than optimal gear ratio as well. I'm a big advocate of used parts, and you can pick up a good higher than stall converter used for pretty cheap. Check with jsup if you are interested, he had one for sale a week or 2 ago.

As far as heads, there is power to be had in reworking the 113's if staying with a TPI intake. If scrapping the TPI setup then go with good aftermarket heads. I'll be selling a set of totally reworked 113's with 2.02/1.60 valves right after Christmas because they just arent enough for me.