Not to say that no I6 can use a 4bbl but certainly not a Stovebolt. The Chrysler 225 Slant 6 with the Hyper Pack and 4bbl was a hoss BUT it had a 12 port head that could use the increased flow; both intake and exhaust. The Aussies have I6 Fords with 12 port cross flow heads that are real screamers. Our beloved Bolts are super for what they were designed for, rock solid engines with good torque at a low rpm. For years when someone wanted a hot six banger I told them go foreign or to hunt up a Slant 6 or a 240/300 Ford and we would build them one. Now the General has gifted us with the Atlas (or 4200 Vortec) that gives an I6 that is a hot rodders dream and it's ALL Chevy. There is some work being done on manifolds for carburetors, and how to use or replace the VVT cams for these engines to help out the low techies (like myself). The prices are coming down in the salvage yards so expect to see them in the old trucks.
