$2.20 for 91 octane & $2.40 for 95 octane.
I've only changed a few things so far. Fitted new air filter, fuel pump, plugs/leads (think you guys call plug wires) HEI, Alloy intake, removed 2 barrel and fitted 4 barrel 600. 18"front & 20" rear alloys. Recovered front seats from material to vinyl. Got backs to do also. Next on list is headers and twin exhaust, currently has the two manifolds into one pipe.