B-1 B/A Spread Guide Head Q & A

Question:	Whats is the difference between the standard B-A dn the Spread Guide version?
Answer:	The valve guide is move to accept 2.150 intake valve with 1.60 exhaust valve. Spring pockets raised .300 from standard B-A. Intakeface of cyl. Head has W-2 intake bolt pattern. Intake ports in w-2 location but are rectangular in shape. Exhaust ports raised and shaped like 18 degrees Chevy and exhaust face not drilled so a person can use W-2, Chevy, or custom header bolt pattern. Head comes with no intake pushrod holes so ports can be made larger.
Question:	What rockers can I use on Spread Guide Heads?
Answer:	W-2 with tall rocker blocks, T & D, or Jessel.
Question:	How much can be milled off the heads?
Answer:	.150 can be flat milled.
Question:	How small a bore can the Spread Guide heads fit on?
Answer:	We recommend 4.100 nut will fit 4.080.