6t2Burb: The 292 is a good, strong motor. What we really need to know is-
How much performance?
What kind of mileage are you now getting?
Don't get me wrong, but a 292 will really perform when induced. But it will suck the juice too!!
For realistic everyday use on the street you kind of want to keep cost under control. If your engine has good compression there are four basic things that you can do to improve performance, and at the same time get the most bang for your buck, without increasing fuel consumption.
1.Overhaul/replace original carb with new (same)
2.Rebuild/replace distributor with new HEI unit
3.Add headers, change to less restrictive exhaust system than stock.
4.Meticulous tuning. This would include replacement of all ignition plug wires. plugs, tuning of carb, timing checks, valve timing checks, re-torque head, manifolds, cylinder leakdown testing, etc. Provided that your valves and springs are in good shape.
You would probably pick up a few horses 10/20 from where you are now, with marked improvement in fuel mileage.
The problems with adding aftermarket 4V carbs and new manifolds is you will just waste fuel. Without increased compression and increased breathing, the engine just simply can't use the fuel.
When you start talking about raising compression, higher lift camshaft, and all, then you start talking BIG BUCKS!! Additionally you will need new cam drive, 3 angle valve job, high pressure springs, etc. You can even get roller rockers and cam for this engine,.....But wait....that mileage was just killed!!!
When you price these parts out, like manifolds, carbs, cams, new pistons, rebuilding costs and all the other things you can think of... man it sure gets spendy fast. Yeah, you can have lots of ponies, but at what cost. And it won't be very streetable, or economical either. But what the heck, build your engine to suit YOU!! Only you know your needs, and budget! Repost.
Think Chevy!
:rolleyes:
