carb spacer

[mqdirtracer57]

Which carb spacer for a 604? HVH or Wilson?

[dynamic performance]

wilson by far

[jason29a]

Wilson.....

[Hendrens Racing Engines]

After trying every kind of spacer on the 604 we went with an open spacer on our house car and Davenports. the 4 hole tapered spacers make one or two lbs more torque on the bottom end but the open spacer makes more power over the usable power band and is far less expensive. Bill