Just remember, we in Australia/New Zealand got your US model year engines without air pumps, but they were all 100% US sourced, and the Aussies picked the best parts of the USA inventory for 250 to 500 build per year Production Racing specials. I argued that the Windsor was an inferior base when I halped my mate extract 375 hp from his 351C in 1988. 27 years on, and I'm reinfatated with the C9 blocked truck engine.
With Holley 600 4-bbl, (ex FE 390 C6OF-9510-N List 3557), a 10.7:1 compression ratio, (up from the 10:1 in the US J code 302HP 4V) stock cast headers, the car was rated at 290 Gross at 4800 rpm and 385 lb-ft at 3800 rpm.
Cam in 1969 XW Falcon GTHO 351 was uprated from this the US C90Z-6250-A cam, with
256 I/270 E split lobe cam,
Intake: opens 11* BTDC, closes 65* ABDC
Exhaust: opens 68* BBDC, closes 22* ATDC
33* overlap
Int Dur@.050- 206
Exh Dur@.050- 221
Intake Lobe lift .2775
Exhaust Lobe lift .2825
Lobe Sep 115
To this, the US C9-OZ-6250-C cam, with
Unsplit 290 I/290 E lobe cam,
Intake: opens 36* BTDC, closes 74* ABDC
Exhaust: opens 84* BBDC, closes 26* ATDC
62* overlap
Int Dur@.050- 218°
Exh Dur@.050- 218°
Intake Lobe lift .290
Exhaust Lobe lift .290
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