The unexpected...

[SLP IROC-Z]

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

[frankzlt1]

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.

[irockidz28]

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

[SLP IROC-Z]

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.

[irockidz28]

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

[irockidz28]

i guess not. efi has a kit already.

[ILuvPizzaTimes10]

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

[irockidz28]

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

[SLP IROC-Z]

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

[c4boom]

dont forget the holley stealth ram