[Formulajones]

There are quite a few very successful 500+" Pontiac builds that are street driven. Couple guys I know don't post in here however.

Dad's combo has been doing it for I think going on 7 years now.

571 ci with a 4.350" bore and 4.750" crank. An old set of ported Edlebrock round port heads, 10.84:1 compression. Started off with a custom solid roller with 269/279 @ .050 and .703/.711 lift, on a 110 lsa. The combo made 724hp/764tq with the chassis headers and 4150 carb on 91 pump gas.

He later switched to a custom hydraulic roller with 261/265 @ .050 on a 112 lsa and I think the lift is in the .660's but I don't have that card in front of me at the moment. I do remember this one being a Harold designed lobe, partially from the newer Voodoo profile on the intake side and the older Ultradyne profile on the exhaust side that Paul Carter spec'd to mimic the solid roller. This cam is also a 4-7 swap.

The rest of the car is simple. 400 turbo, custom converter, 3.42's out back, full exhaust system and all the creature comforts the car was born with when dad bought it new. 100% street car and driven everywhere.
It's actually surprisingly docile, runs cool, idles all day long and does 300 mile road trips in the AZ heat without complaint, and routinely climbs up and down the mountain passes here in Northern Arizona. It's been a fantastic engine.