COMP Cams Camshaft CS 280Xfi HR-13

Marsoni

M251S

$200.47

Get it in 3 business days with 1 day shipping. Friday, May 29

COMP Cams Camshaft CS 280Xfi HR-13Hydraulic Roller Xtreme Fuel Injection (XFI): Strong mid range and top end. Requires headers, gears and stall. Strong idle.; 280 288 Advertised Duration, 230 236 Duration . 050", . 576" . 570" Lift, 113 Lobe Separation; 2000 to 6000 RPM range; Recommended use with 1. 6 rocker arm ratio; Must use bronze tip fuel pump pushrod when using high pressure or high volume pump This Part Fits: Year Make Model Submodel 1987 1991 Avanti II Base 1991 1996 Buick

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The plates have a tiny amount of twist in the center and quite a bit of doming when flexed. While the outer edges are entirely floppy. Most of the center is smooth, but there are rough patches that flake off paper pieces when rubbed with a spoon or from a lot of moisture from food. The flat surface (not the inner walls) was able to withstand still water for about 10 minutes before weakening, so I wouldn't use it for wet or very moist foods.

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Reviewed in the United States on May 28, 2026