I used to race dirt track in Jacksonville fl. I paid Wheeler 10grand for a 377. It had Dart iron eagle heads, motown block, je pistons, eagle rods and crank. 640 lift roller cam.
Anyways i made 3 laps and it snapped 3 double tappered push rods and 2 roller lifters. when i talked to him he said thats racing. he wouldn't and won't stand behind his work.
In Jacksonville FL where Wheeler is located, he has a nickname (3 lap squeeler motors" and I didn't give him that nickname. save your money and stay clear.