irocrob

Finally took the IROC out this summer after a long spell in the garage. Found that the intake is leaving lakes of oil on the floor. Can't think of a better excuse to put in a new cam since I have everything apart. Looking for some reccomendations. Been researching for the past two weeks and can't make up my mind.

1985 305 TPI, MAF, 3.42 rear gears, 700r4, stock heads & ECM

Present upgrades:
SLP headers & exhaust
AFR
Davis Unified Ignition HEI
2000 stall converter

Not looking to make a monster. Just some more power & torque. Maybe a little lumpy idle too. I'm all too aware of the TPI limitations over 4200 RPM's or so. No need to worry about emissions. I would really like to install a retro fit roller cam, but I see these kits have gotten a little pricey. It's all apart. I'd really hate to keep the flat tappet. If that's what I'm gonna have to do due to $$ I'm willing (reluctantly) to compromise.

rusty vango

go to the comp cams website and punch in your data. there you will find they have a cam for you.and since you may be keeping the flat tappet cam. theyre affordable. I would definitely use new lifters as well.

racerx520

iTrader: (1)

i believe all TPI's are hydraulic roller cams.

and i dont mind my Crane 2032 cam, although i was kinda hoping for something with a bit larger lobe to make the nice big cammed out noise. the only reason i didn't go for a comp cams is because i would have needed work on my brand new heads because the comp cam had too high of lift, the 2032 cam was a good plug and play option for me.

rusty vango

TPIs don't like the "lumpty, lumpty, lumpty. business at all. theyre more comfortable making gobs of low RPM TORQUE. now if you tune and tweak . you still will run out of breath around 4800RPM. assuming you are running a true TPI setup. sure theyre are other supposed TPI set ups but for me ,they are a grey area.

8Mike9

Ya, ditch the "lumpity" sound idea, by the time the cam get's going making you power, your TPI will be choking you.

Worse mileage, poor drive ability...etc.

Also, your '85 will be be flat tappet, unless converted.