Well about a month ago I bought a 1991 Formula off a friend and my problem is I don't know which it is. It's obviously the 305/TPI but I don't know what it's pushing stock. 225 or 205 I'm not sure, how can I check ? Actually my friend just said that the 700R4 had 205 and the T5 has 225, is that true ?

Next, he put a rebuilt 305 in, and put a Wolverine Roller Cam in, is there a way I can find out the timing, lift, etc somehow ? I really don't feel like ripping it out.

Third, I already put an SLP cold air on it, but my next step is getting some new intake runners and 58mm throttle bodies, how many people have put the BBK ones on their car and what do they think of them, how much HP did it give you and so on. What do you guys think of SLP intake runners are they worth the money ?

Lastly, I've never messed with the valve train but seriously the rocker arms package that SLP makes, are they really worth 400 bones ?

What're some other parts you people put on your TPI's ? Oh where can I get an aluminum driveshaft ?

Anyway, thanks and have a nice day!

 

bbk is good, but if i had the choice again i would get the holly tb.
and get the 52mm tb you shouldnt need the 58mm, anyway for the 58 to work you HAVE to port the upper penilum. i personaly dont know about the slp runners, but from what ive heard the accel runners are great.
by the way i did feel a "good" diff in power.but for the money i think a manifold base would do you better than a tb.imo

 

Lastly, I've never messed with the valve train but seriously the rocker arms package that SLP makes, are they really worth 400 bones ?

What're some other parts you people put on your TPI's ? Oh where can I get an aluminum driveshaft ?

Anyway, thanks and have a nice day![/quote]

the only reason it is 400 buck, is because they are self-aligning.
(most self-aligning rockers are at least 350)

ireland impire and gmperformance parts make aluminum driveshafts. both sale for about 330 bucks.

there should be section on this web site on common upgrades for tpis