i know a fellow who's interested in building a moderately modified 300 six-powered street rod, backed by a 5-speed tranny. he asked about which transmission would be the easiest to use. not having much experience with OHV big-block ford sixes, i figured someone here could advise us(I volunteered to help him) so, is there an easy ford tranny that will fit the 300 without after-market adapters?