Picked up a Edelbrock Tunnelram for my Street /Strip 1972 355ci SBC 4-bolt block I'm currently building. 1997 casting Edelbrock Street Ram. Originally came out in 1976. Still available I believe. Real good piece. Going with a pair of 1974 800 Holley double pumpers. Using ported & milled Phase 2 Bowtie heads, 307/226 cfm, 50cc chambers, zero decked 9.00 block, 12.2-1 compression. 262/[email protected], .651/.651 lift, 106 lobe sep solid roller with 1.55 ratio CRANE roller rockers, etc. This tunnelram should help with the program. If it don't get used on the 355, it'll go on a aluminum rod 327 with ported & milled 2.08/1.60 valve 292 Turbo heads that flow 290/215 CFM. I'm building it with 13-1 compression and a big [email protected] 675+ lift solid roller. Holley 300-110 intake & 850 DP Holley going on one of them.