Cheap 2.0 build for track, engine build questions Options

[RFoulds]

To race in VARA D Production 2 liter class, I want to build a solid reliable motor. I am limited to the stock crank (71mm stroke), and stock piston size (94mm)

I have on hand a GA short block and a NOS set of Mahle 94mm P&C's, 8:1cr. I also have a nice pair of Italian Weber 40's. So my thought is, with the right machining and balancing, I should be able to build a solid reliable 2.0, that can produce 120hp . (wild guess)
Of course, what version of Webcam to use is still TBD, and heads.

questions I have:

am I kidding myself that the stock Mahle cylinders can handle continuous high rev's and heat?

will 44IDF carbs be significantly better than 40 or will the size of the jets matter most?

besides balancing crank, rods and flywheel, what machining should I consider? (Have not considered the heads yet.)

[ChrisFoley]

Sell the NOS set to a CW.
Forged pistons are lighter and make more sense for continuous high rpm use. Switch to CrMo rods too.
40s with 34mm venturis would work pretty good. 44s with 36mm vents might get you more top end, depending on how you build the engine.

Invest in the valvetrain. Use 8mm stem stainless valves for both intake and exhaust, CrMo pushrods, Porsche swivel foot adjusters, hd single valve springs.

The 86A camshaft is really easy to build around. It likes compression around 9.5:1.
Spin it up to 6500 rpm and with the right header you'll make 150 hp.