i would not consider smaller heads. and AMP has a very bad rap enough for me to steer clear of them.
i got my 347 SB from CHP coast high performance. i know theyre modulars arent that great but the pushrod block i got from them was great and they had awesome customer service. i had 8.3/1 compression and i have the AFR 185s with the track heat intake. it was nasty N/A on the street. my buddy is now putting it in his car with an S trim and 10-12lbs of boost and it will be done this week. i will let you know how it does
i got my 347 SB from CHP coast high performance. i know theyre modulars arent that great but the pushrod block i got from them was great and they had awesome customer service. i had 8.3/1 compression and i have the AFR 185s with the track heat intake. it was nasty N/A on the street. my buddy is now putting it in his car with an S trim and 10-12lbs of boost and it will be done this week. i will let you know how it does