does milling heads help upstairs or down low?
 

just wondering if i should mill my heads for a bronco..i can get it done for faily cheap

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1987 black notch(ex 4 banger)
DSS 306 w/ main support...Elderbrock 6028 heads..gt-40 intake..24# injectors...70 mm tb..77 pro-m...accel 300+..mac full legnth..tremec w/ pro5oh...full MAC exhaust,off road h-pipe,long tubes, catback...ron davis radiator..subframes, control arms...CFDF II..o yea holley FPR sucks..dont buy one..

Milling heads will increase compression which increases HP and Torque. The cam determines at what rpm.

hmm..the only other thing i was concerned about is rasing the compression 2 high plus low rpm strain will increase the chances for detonation..what a 10.5:1 be unreasonable for a bronco..my concern is that that is cheap easy power while i got it apart but i dont want it pinging under load..also rember i dont want to be putting anyting higher than 89 in this gas guzzling beast

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1987 black notch(ex 4 banger)
DSS 306 w/ main support...Elderbrock 6028 heads..gt-40 intake..24# injectors...70 mm tb..77 pro-m...accel 300+..mac full legnth..tremec w/ pro5oh...full MAC exhaust,off road h-pipe,long tubes, catback...ron davis radiator..subframes, control arms...CFDF II..o yea holley FPR sucks..dont buy one..

10.5:1 is pretty high for a motor with iron heads, especially on only 89 octane. With iron heads I'd strive for 9.5:1 compression, and aluminums you'd be able to run closer to 10.5:1. Running premium gas would still be a good idea.

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1991 LX Hatch 5.0L

ah..94 only goes in my stang..my wallet cant alow it for the bronco to run it also

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1987 black notch(ex 4 banger)
DSS 306 w/ main support...Elderbrock 6028 heads..gt-40 intake..24# injectors...70 mm tb..77 pro-m...accel 300+..mac full legnth..tremec w/ pro5oh...full MAC exhaust,off road h-pipe,long tubes, catback...ron davis radiator..subframes, control arms...CFDF II..o yea holley FPR sucks..dont buy one..