Hi fellas,

I've got a dilemma with an ex-turbo'd L28 engine.

Engine was a fuel injected turbo, now converted to dual SU carb set up. Yes I know you may ask why the conversion, the answer is $$$ for the time being, turbo is put aside until more $$$ come through, a while yet!

All bearings, rings, seals have been replaced and well run in, but I'm finding it a little short of power on stand start acceleration.

The car pulls great once above 70kph (45mph?) in top (4th) gear 2500rpm, but it's working through the gears from a stand start that I feel is a little slow. Overtaking and accelerating on freeways is excellent.

The specs are L28 N42, elec dizzy, 240z carbs, extractors mated to a 240K box (C110) and a 3.54 ratio diff. Comp ratio is at the 8.3:1 mark.

My question is, are turbo cams profiled differently than N/A engines?

As far as I'm concerned the engine is spot on, but I believe the cam is letting me down.

Any experience out there?

Help from some Guru's appreciated, cheers!

that with the low compression will give you some of your acceleration problems as well.

if you ar going back to turbo then i wouldnt worry about it. if you plan to stay the n/a route then the first thing i would do is buy me some nice flat top pistons to up that compression