11-15-2006, 08:43 PM
Hey all I am ready to build my 86 TPI 350 but I havent decided on a cam and/or chip The engine is basiclly stock just what to bump up the tourqe up as much as possible without changing the heads and other things I will have headers on it and a 700R4 and ideas or combos LMK
12-14-2006, 01:25 PM
Some have run the LT1 hot cam with good results. If you have emissions testing and just want a little more out of the engine you can go with a comp cams 2040 cam. Since yours is an 86 it's a 305 unless it was a Vette engine.
If it's now a 350 the hot cam would work better in it than the 305 and either the 2040 of 2050 cam. Also for a cheap upgrade to a very similar cam you can get a melling cam from your parts store for $100 or less with lifters etc. It's listed as a performance cam for most chev V8s in parts catalogs.
12-28-2006, 11:23 AM
the cam your going to run pretty much depends on what your going to do with your TPI setup. If your going to go ahead and upgrade it to make flow more, then go ahead a pick a cam that will flow nice at higher rpm. Otherwise since the stock TPI drops off at 4500rpm, a nice low lift cam would be all you need.
12-28-2006, 05:04 PM
The cam I used for my 350 TPI engine is a Summit SUM-K1102
Basic Operating RPM Range: Idle-5,500 RPM
Intake Duration at 050 inch Lift: 204
Exhaust Duration at 050 inch Lift: 214
For the street this cam is great has lots of torque and pulls hard all the way through the power band, at least to 5500 RPM I have not noticed the engine falling off up to that point. I had the prom made to accommodate the engine with LT1 injectors 24 LB the 700R4 and a 3.42 rear end. Gas mileage is a respectable 17/19 MPG and it holds it's own against most Mustangs at the light. Life is good, once you go fuel injection you won't go back. Harald K.