I have a 305 tpi motor with sr torquer heads,slp headers,high flow runners and plenum,2400 stall converter,373 gears,its a 700 r4,and i have all the free mods.I need a cam for this thing want to know what would work best with the mods i have.thanks

 

For your application something around 208-224 duration, and no more than 465-480 lift.

SLP makes a decent grind. part number is 51006 I think.. Its something like 208/212 duration. Lift isn't too high either.

Those heads are not the best in the world, and don't flow all that much IMO..

-- Joe

 

Oh wow i thought those heads would be good a couple other people have said good things about them.What heads would you recommend.

 

I have the mods below and love my 305 this way. I am building a 350 for when I blow this up but for now it is a HUGE difference over stock

 

Did you have your sr torquer heads ported a little around the bowls i read some posts and people say u have to open up the bowls or something.How much does that cost average. thanks

 

I purchased unassembled heads and assembled myself with the springs from the summit cam kit and Manley valves . The only areas I took my dremel to were the runners, there was some casting material in there that needed to be cleaned out.

 

I ran a Comp 210/220 .480/.480 112LS camshaft with untouched vette heads, stock ported TPI, headers, exhaust, etc. with very good results. Best on motor was 13.65 @ 101.xx mph. Dynoed 240rwhp and 308rwtq behind a 5speed.

 

The S/R's are really not much better than stock 58cc castings IMO.. I dunno what I'd run on a 305.. Prolly those or just ported stock heads.. 305 is touch to build up.. I've done it for fun, but never got much out of them.

-- Joe

 

I just finished putting in a crane 2032 cam 214/220 ~.500" lift with 1.6 roller rockers and a siamesed base. Only ran for a few days now and needs some tuning still, but with 5* base timing and a little higher fuel pressure, it pulls hard to 5300-5500 rpm where my SLP chip cuts off(@5500rpm). This is a '89 305 TPI 5 speed with 3.42 gears. With the stock cam (207/213?) and stock manifold base, it would start to die somewhere between 4400-5100(hard to tell) Definately higher now. I did lose some low end though like below 1500rpm the car isn't happy in any gear other than 1st.

Hoping for a 13 or really low 14s at 99+.

 

Anyone think the comp cam xe 256 would be good.Duration 212 to 218 with .449 to .456 with 112 lsa.Anyone else think this would be good.

 

Forgot to mention this setup was on the original 305 engine and not a 350. I sure miss that little sucker. Suprised the hell out of people when I told them it was only a 305. With a little shot of nitrous(80hp) went 12.8's at 109.5.

 

Hey David,

I was going through your side. Looks like when you swap motors, you leave the tranny in the car and do the same trick I do.. ??

-- Joe

 

David did u have to do anything to the computer for that cam or did it all work out with the stock chip in there.

 

I also have the 2032 in my 305.. i like it but I have to agree with beast, you lose some low end below 1500, but pulls like a sonofabitch from 2000rpm+ but with your high stall converter that should help fix that problem a little for you... I recommend the 2032, it was easy to install, good roller cam, car runs alot better with it, little bit of a rough idle though.... does't like my stock chip... had to put in a PR chip.. Have fun

 

I had a custom chip burned which definitely helped a little on the performance. I actually ran the stock chip when I sprayed the car at the track as it had less timing. Driveability was good with either chip.

 

I think i am gonna go with the comp Xe 256 i listed the specs above.Would want 1.5 or 1.6 roller rockers?? thanks for all the cam help too.