I just brought a 66 396 30 over block #3855961 and heads #856206 and it came with an eldelbrock dual plane intake model #0427x how good are the heads and intake.this will be a street car 400t with a 3000 stall and 12 bolt with 3.73 or 4.11. any info will be greatly apreciated.

Heads are the same #215's closed chambered heads and the intake is an older,but decent piece.