looks to me like the 302's would be a good choice unless he is going to change pistons later they claim to be 60 cc but are around 63-64 cc also but can be shaved down to 57
problem is they are still open chamber- so 915's cut to under 60 cc flow a lot more however the 302 with the 318 sized ports has more velocity- still no quench
EQ head is about the same 62 CC as Edelbrock but iron
IDK about Indy but I think they were 63 cc last time I fought with them
some more cam bs to think about
some recommended the stock 340 268/ 276 cam (in MOPAR Degrees) this cam is basically 280-290 in Summit/ Elgin/ Crane/ Edelbrock degrees
while only having 429/444 lift and 208/214 @.050 (speed pro gets it up to 210/220 and some bump the intake lift to 445 or 450
I do not have all my old data handy but I do show the DC 260 cam actually measured 261 @.008
what this means is that the shortest Engle .904 cam- (that I know of) is too big just like comp XE274HL)
here's the data
430/450 260/268/==430 DC 260 measured 261 @.008 with cam doc 212 @.050 115@200 42@275
44 overlap 221/228 110 LCA P4452759 LA 1200-5000 mild comp -perf RV
470" .313" 260° 214° 127° K-54HYD .. 260 Engle
there was also a 260/260 Direct Connection Cam
note the DC 260 is open 42 degrees above .275 lift for a 260 Mopar degree cam wheras Mike Jones Special
458 305 246 @.008 202@.050 120@.200 64@.275
so jones is 14 Mopar degrees shorter on the seat- close to stock but is 50% bigger where it counts
IDK about details of Lunati, Howard, Bullet etc