im in the same boat, keep the original OHC. up here in canada, you can find the Intakes and Carbs for not too much (Saw a complete OHC6 at a swap meet out of a Tempest, guy wanted 200$ for the whole thing, the guy didn't know what he had) before you ask, i was broke and couldn't buy it. but you will have a more unique car than a 355 or 400 Powerblock car ever will be, i can almost guarantee you that you will almost always be the ONLY guy at the car shows with that engine in the car. and you will get decent mileage cruising around town.
Keep up the Dream!
2002 Nissan Sentra Spec-V 1974 Chevy Vega Wagon - 408SBC - 11s in 1/4 1968 Pontiac Firebird - 4.1L OHC 6Cyl - Red on Red - Bench Interior - Restoration in Progress
