The single 4 top seems to be a compromise to follow the rules and also maintain hood clearance.
On the other hand it must have provided some performance benefit otherwise why did most hemis use it in place of the earlier single 4 nascar dual plane.
69 EF8 GTX 440 auto 72 EB5 RR/GTX 440 auto 70 EW1 GTX 440-6 4 spd 70 EF8 Satellite 318 auto (452 coming soon) 70 FK5 Satellite 318 auto 71 FC7 Cuda 340 4 spd
