I am contemplating replacing my 261 with a 0.30 over 307 v8 engine. Aside from the obvious , ( motor mounts , gas pedal linkage, wiring for distributor exhaust manifolds (no Headers, I find them useless and a waste of money. etc.) , my biggest question would be will a GM Hei distributor fit without beating the firewall into submission? Front motor mounts ( factory style) or tubular style with side mounts. Any input would be help full . Thanks.
