1985 (L69 and LB9)
305 AT 5000 5500 14088843 .403 .415 202 206 114.5 (115/-114)

1986 (LB9)
305 AT 4500 5000 14094097 .350 .385 178 194 109.0 (106/-112)


http://www.thirdgen.org/techboard/tp...5-tpi-cam.html

I had 1in my 79 z I had. I got the car for free it was in great shape but didn't have a motor my buddy at the time had a 86 z and I had built a 350 for and then he gave me the 305. I tell you that engine for a 305 was fkn great. I threw a 350 can and springs in it i dont remember what hight it i think it was 292 duration and that fken woke up for a 305. There were many times I was street racing with it when I lived in Florida and just about buried the tack lol. God I miss that fin car. I think you should throw a can in it while you have it apart. The only thing you got to watch out for is the lobe height doesn't hit the block. I know its only a 305 but sometimes you only got what you got to work with so your not spending a ton of money on it. Good luck with it.

well i guess the question is.. how much cam can run on the stock tune? would the lt1 have been too big? if that cam would work on stock tune then i would just find something a little smaller then with my 1.6 rockers it would be equivelant..brand new cam, lifter packages are cheap enough for my car then its just timing chain and springs

keep it under .500 lift total at the valve. if you can find an aftermarket cam with similar duration and lsa to a stock 85 350/305 TPI cam that would probably keep it running the best with a stock ecm. save for a 24x swap. id really be interested in seeing how a tuned port motor runs with that setup on it.

i feel like thats going to be a huge pain to get working right. lol

i guess not. efi has a kit already.

Yeah and Deffinetly get the Harness! its a GREAT investment. even came pre loomed just drop and plug in.

so just to update this. my new balancer should be in tomorrow. the alternator got a much needed rebuild. just got a little more cleaning up and a little painting to do then should be going back together by the end of the week.


and i think the deffinite plan is to save up and next winter do the 24x swap with my vortec heads and a cam

try to find a pair of slp runners or a used super ram would be even better (shorter runners and larger plenum volume)

dont forget the holley stealth ram

not good for a 305

yea im going to do the runners and base.

so the new harmonic balancer is on. its all back together. alternator got rebuilt while it was out. just need coolant and adjust the timing